Search

Copyright of Movement & Sport Sciences / Science & Motricité is the property of EDP Sciences and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Timisoara Physical Education & Rehabilitation Journal is the property of Sciendo and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The aim of the study was to develop a method for measurement and analysis of kinematics of the pelvic girdle movement in breaststroke swimming to support training of technical skills. The measurements were performed in five elite breaststroke swimmers. A recording device for triaxial accelerations and triaxial rotational angular velocity was mounted on the dorsal part of the pelvic girdle of the athlete. The task of the athlete was to swim one length of the 50 m swimming pool with the intensity similar to competition. From the consecutive cycles of swimming motion, we developed individual mean graphical and numerical profiles of the kinematics of the pelvic girdle movement within the average cycle. Mean basic values of the characteristics were compared with the values documented in the literature obtained by means of the video analysis or using the method of measurement of the velocity of the unwound rope. The comparison revealed that the results in the group studied were very similar to the results obtained using other methods and were typical of elite athletes. Analysis of the motion profiles for the pelvic girdle in breaststroke swimmers indicated that the results obtained reflected individual technique of performing individual phases of swimming cycles. The proposed measurement method, presentation and analysis of the profile of the pelvic girdle motion in breaststroke swimming represents a good tool for fast and effective biomechanical evaluation of motion technique components. [ABSTRACT FROM AUTHOR]

Abstract: The distribution of a swimmer's stamina in competitive 200 m race is very important. The performance depends not only on a swimmer's capability, but also on the strategy of stamina allocation across the four segments. In the present research, athletes who had participated in 200 m items in the 13th FINA World championships (2009, Rome) were allocated into three groups based on their performance, and these groups were top-elite swimmers (top 3 in finals), mid-elite swimmers (top 16 in heats) and lower-elite swimmers (bottom 12 in heats) respectively. Data of the segmental time and the time ratios (the percentage of segmental time in one's total time) of the three groups were analyzed. The results showed that the first and second segmental time ratios (STRs) of the top- and mid-elite groups were relatively larger than those of the lower-elite group. But the situation of the last two STRs was opposite. SONI Rebecca (a very famous USA breaststroke swimmer) missed medals of her strongest 200 m breaststroke event due to her too fast velocity in the first and second segments. These suggested that only the proper allocation of four STRs in 200 m items could bring athletes to their highest performance. So it is very important to optimizing the mode of time allocation during daily training, especially for the gifted swimmers lacking experiences. Based on the above research results, we developed a navigation system for regulating athlete's swimming speed during training. The system was composed of 15 watertight LED lamps laying on the bottom of the pool, a computer, a control unit, a starting unit with speaker, and other components. It can modulate the timing and duration of every LED lamp. The course of a swim training session could be guided by the lighting timing of each lamp in turn and therefore could be converted into a parameter file. Coaches could compile the parameter file to obtain desired training speed for the very athlete. And the athlete could regulate his/her speed according to the clue of the lamps controlled by the navigator. For instance, if the lamp ahead of the athlete was illuminated, it meant their speed was too low. If the illuminated lamp was just under the athlete's face, it meant the speed of the athlete was the desired one. All kinds of distance training course could be navigated by the system. It could not only guild a single training course, but could also perform several training sessions which demand strict intervals. It will save considerable amount of energy and time of coaches and improve their training efficiency. It has been authorized the invention [Copyright &y& Elsevier]

Purpose. Swimming analysis on up to 200 m events pointed out that the first 15 m plays an important role in the performance result. Hence the hydrodynamic ability to glide under water in a streamline position. Should not be neglected during training, especially in young competitors. Glide in one of five important tips of training .The purpose of this study was to identify Training Program (contains land exercise and water drills. And its effect on the glide performance in (15 m) crawls and breaststrokes in young swimmers Methods. Sample contains (30 young swimmers) dived into two groups (control group) & (experimental group) , each one 15 young swimmers male ( mean ± SD , age 13 ± 1.5 years , height 166 ± 8 cm , body mass 52.3 ± 11.3 kg. Study used tests to measure gliding includes: Starting block and asked to dive and swim foe 15 m crawl CR and 15 m breaststroke (BR) in two different trails. Later subjects underwent a series of hydrodynamic tests such as : diving and gliding under water in a streamline position for 8 m ( DG ) , pushing off from the wall and gliding underwater position 8 m (PG) , pushing off from the wall , gilding and swimming crawl for 12.5 m (PGC) , pushing from the wall , gliding and swimming breaststroke for 12.5 m (PGB) , sculling while floating on the back for 10m (SC) . Time was recorded. Results. There was a statistically significant between the two measures (pre &post) for the experimental group and between the two (post) measures for control and experimental groups. Conclusions. As a result the specific exercise program has been improved performance of gliding through crawl and breaststroke for young swimmers. [ABSTRACT FROM AUTHOR]

Finalist swimmers in the 2nd International Swimming Meeting, which was held in Banja Luka from 16 to 17 April 2011, were related to 100m breast stroke. The result efficiency of the competitors in the mentioned section of A and B finals showed inconsiderable statistical differences. nd The research was conducted on the male competitors of the 2nd International Meeting in Banja Luka. The sample was consisted of 18 competitors who were ranked in the A and B finals. Chronological age of the A final's participants was related to the year of birth from 1990 to 1995, whereas B final's participants year span varied from 1992 to 1997. Sample of variables (measuring instruments) was result efficiency at 100m expressed in stylized form of breast stroke movements. The results were subjected to the descriptive analysis of central tendency measures and to the T-test. The results of the central tendency measures had less numerical value with the A finalists compared to the B finalists. On the other hand, similar results have larger numerical values according to the score boards of the swimming competitions. Sample, consisting of 18 male respondents who were ranked in the A and B finals of the 2nd International Swimming Meeting held on 16 and 17 April 2011, shows inconsiderable statistical significance, but it is still worthy of attention and analysis for the success in swimming; not only in major swimming competitions (World Cups, Olympic Games, Championships, Meetings etc.), but in regional competitions also. [ABSTRACT FROM AUTHOR]